Definitions – installation of MMF floor coverings
Multilayer modular floor covering: Floor covering as described in EN 16511, as well as other semi-rigid multilayer modular floor coverings for floating installation (e. g. “LVT, design flooring” etc.).
Modular: Elements supplied in single sheets or tiles with worked edges that allow the product to be joint together to form a layer integral floor covering unit.
Underlay: Resilient layer between the substrate and floor covering, added to obtain specific properties. As underlays, it is also possible to have combinations of the above mentioned underlays with films or coatings (e.g. vapor barriers).
Floor covering system: Combination of multilayer modular floor covering element and the underlay.
Substrate: Structural layer on which the flooring system is installed.
MMFA Product Classes
Floating multilayer modular floor coverings are currently classified by MMFA as:
Multilayer modular floorings for floating installation…
Class 1: All products with wood-based substrates (≥ 65 % content of wood particles/fibres in the core) with polymer or cork surface layer (cork thickness less than 2.5 mm).
Class 2: Polymer or polymer-composite substrate with polymer surface layer and/or lacquer.
Class 2A: LVT click (EN10582) – hot pressed and/or calendered.
Class 2B: all other polymer substrates (EN 16511) – EPC and SPC.
(EPC: expanded polymer core and SPC: solid polymer core).
Class 3: All products not covered by class 1 or 2, or external standards.
Note: Class 3, for example, covers modules using a click system and textile surface or those on a mineral core.